Rish Dune Gas Processing Plant
A 320 MMSCFD sour gas processing and treatment plant taking associated and non-associated gas from four surrounding fields and delivering sales-quality gas into the national transmission grid.
OperatingDetail
Midstream
Coastal Export Pipeline
A 420 km, 32-inch buried crude export line linking inland production to the coastal terminal, with three pump stations and a full leak detection and integrity system.
Completed
At a glance
- Status
- Completed
- Location
- Al Nakhil to Ras Sahil terminal, Oman
- Period
- 2018 — 2021
- Our role
- Project delivery and commissioning
- Length
- 420 km
- Diameter
- 32 in, API 5L X65
- Throughput
- 260,000 bpd design
- Pump stations
- 3, with 14 MW installed each
- Completed
- November 2021
- Right of way reinstated
- 100% of the route
About the asset
The route crosses 420 km of gravel plain, twelve wadis that carry flash floods for a handful of days each year, and two areas with protected habitat. The first alignment was 26 km shorter and was abandoned: it clipped the corner of a gazelle range, and rerouting cost less than the mitigation would have.
Construction ran through 2019 and 2020, including the eight months in which pandemic restrictions capped camp occupancy at 60%. The schedule held because the spread was resequenced to run three shorter fronts with independent camps rather than one continuous front.
The line has operated since November 2021 without a reportable release. Computational pipeline monitoring compares metered flow against a hydraulic model in real time and will call a leak down to 0.6% of throughput; the wadi crossings are inspected after every significant flow event.
Scope of work
- Route selection, geotechnical survey and land access negotiation
- Line pipe supply, automated welding and hydrostatic testing
- Three pump stations with variable-speed drives
- SCADA, surge analysis and computational pipeline monitoring
- Twelve wadi crossings and two protected-habitat diversions
- Terminal tie-in, custody metering and full route reinstatement
Midstream
Related assets
Ras Sahil Terminal Expansion
Two additional 780,000-barrel crude tanks, a second loading berth and a vapour recovery unit, doubling the terminal's throughput and cutting loading emissions by 96%.
Under constructionDetail